Part of the Omron CJ-Series PLCs series — see the full model table, lifecycle status and replacement parts.
Omron CJ1W-ID231 — 32 Pt DC Input, Fujitsu Connector
SKU: CJ1W-ID231USD 45.00
CJ-series 32-point 24 VDC digital input unit with Fujitsu/OTAX 40-pin connector for high-density bulkhead wiring
1-Year Warranty
Full manufacturer warranty
Global Shipping
Worldwide delivery available
Genuine Omron
100% authentic product
Ready to Ship
Usually ships within 24h
In Stock
This item is available for immediate shipment from our warehouse.
Contact for pricing, bulk discounts, and shipping
Product Overview
The Omron CJ1W-ID231 is Omron's 32-point 24 VDC digital input unit for the CJ-series PLC platform, the high-density sibling of the 16-pt CJ1W-ID211 (already done in our catalog). manufactured by Omron Corporation. Hengyixin Automation stocks this controller in Xiamen and ships within 3-5 business days to most Asian, European, and North American ports.
It uses a single Fujitsu FCN-361J040-AU 40-pin connector (or compatible OTAX N360C040J2) on the front face, accepting the standard G79-O@@@ pre-wired cable assembly or any third-party FCN-361J040-AU breakout — which lets you land 32 inputs in a 31 mm DIN-rail slot, half the panel width of two CJ1W-ID211 units side-by-side. This makes the CJ1W-ID231 the right pick for I/O-dense panels where DIN-rail space is at a premium — typically pick-and-place machines, robotic work cells, and any cabinet where 32+ inputs need to land in a constrained footprint.
For high-speed inputs (registration-mark detection, encoder Z-pulse, high-speed object counting), the engineer should pick the CJ1W-ID233 (32-pt HIGH-SPEED with MIL connector) instead — it supports 15 µs quick-response on inputs 0-7, plus interrupt-input assignment on the CJ2 CPU.
Key Features
- 24 VDC rated input
- CJ-series 32-point 24 VDC digital input unit
- ON threshold 14.4 VDC min / 3 mA min
- 5.6 kΩ input impedance, 4.1 mA typical input current at 24 VDC
- SKU: CJ1W-ID231
- Series: CJ1W I/O Basic Units (CJ-series expansion I/O)
- Voltage: 24 VDC
- I/O: 32 points
Best-Fit Applications
- Encoder-Z and home-position inputs on a multi-axis servo system — 32 inputs from 4 servo axes, all aggregated on CJ1W-ID231.
- Limit-switch / proximity-sensor aggregation on a pick-and-place gantry — 32 inputs from 4 axes, each axis contributing 8 sensors, all.
- Push-button + selector-switch panel on a packaging machine operator console — 32 inputs from 16 push-buttons + 16 selector switches.
Buying Checklist
- Pick CJ1W-ID261 for 64-pt Fujitsu connector — for very-high-density panels
- Pick CJ1W-ID232 for 32-pt MIL connector — same density, MIL connector for US-style mil-spec wiring schemes
- Pick CJ1W-ID231 for 32-pt 24 VDC standard input with Fujitsu connector — high-density panels where DIN-rail space matters
Technical Specifications
| Model | CJ1W-ID231 |
|---|---|
| Series | CJ1W I/O Basic Units (CJ-series expansion I/O) |
| Type | 32-point 24 VDC digital input unit, Fujitsu connector |
| Input Points | 32 points |
| Common Configuration | 16 points per common (2 commons per unit — word 1 = CH0-15, word 2 = CH16-31) |
| Connector Type | Fujitsu FCN-361J040-AU 40-pin socket (compatible OTAX N360C040J2); 1 connector per unit |
| Recommended Cable | Omron G79-O@@@ pre-wired cable assembly (sold separately) |
| Rated Input Voltage | 24 VDC |
| Operating Voltage Range | 20.4 to 26.4 VDC |
| Input Impedance | 5.6 kΩ |
| Input Current (typical at 24 VDC) | 4.1 mA per point |
| ON Voltage / ON Current | 14.4 VDC min / 3 mA min |
| OFF Voltage / OFF Current | 5 VDC max / 1 mA max |
| Interrupt Input Capability | NOT supported (use CJ1W-ID233 for interrupt-input assignment on CJ2 CPU) |
| Internal Current Consumption | 90 mA at 5 VDC (from CJ bus) |
Manufacturer documentation
Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.
FAQ for CJ1W-ID231
What's the difference between CJ1W-ID231 and CJ1W-ID211?
Both are 24 VDC digital input units for the CJ-series PLC. The differences: (a) Density — ID211 has 16 points in a 31 mm wide slot, ID231 (this SKU) has 32 points in the same 31 mm width. (b) Connector — ID211 uses a removable M3 screw terminal block (PHOENIX/COMBICON-compatible), ID231 uses a Fujitsu FCN-361J040-AU 40-pin connector. (c) Filter — both have 8 ms default with 0-32 ms selectable.
Does the CJ1W-ID231 support quick-response inputs on a CJ2 CPU?
No — the CJ1W-ID231 is a standard-speed input unit. Quick-response input (15 µs ON / 90 µs OFF) and interrupt-input assignment is supported only on the high-speed input units: CJ1W-ID212 (16-pt removable TB), CJ1W-ID233 (32-pt MIL connector), CJ1W-INT01 (legacy 16-pt interrupt-only unit).
What cable assembly do I need for the CJ1W-ID231?
The CJ1W-ID231 accepts a Fujitsu FCN-361J040-AU 40-pin connector on the front face. The standard Omron accessory is the G79-O@@@ pre-wired cable assembly (available in 1, 1.5, 2, 3, 5, 7, and 10 m lengths), which has the FCN-361J040-AU connector on one end and free leads on the other for landing on a remote terminal block. For users who want a MIL connector on the field side, Omron also offers the G79-O@@@-M@@ (Fujitsu to MIL break-out) but this is rarer.
Can I use the CJ1W-ID231 with both NPN and PNP sensors on the same unit?
No — all 32 inputs on the CJ1W-ID231 share one common terminal per 16-point group (2 commons total per unit), so each 16-point group references the same polarity. If you wire COM-1 to +24 VDC, the 16 inputs in that group (CH0-15) accept NPN sink-output sensors. If you wire COM-2 to 0 V, the 16 inputs in that group (CH16-31) accept PNP source-output sensors.
Similar Products
Explore related Omron models often viewed alongside this product.
